Roofing-sheet



J. WHITE.

ROOFING SHEET.

(No Model.)

Patented Sept. 30, 1890.

0N "Hun m ,W v 5!! 1 1 i- UNITED STATES PATENT ()FFICE.

JAMES WHITE, OF BROOKLYN, NEWV YORK.

ROOFING-SHEET.

SPECIFIGATION forming part of Letters Patent No. 437,271, dated September 30, 1890.

I Application filed July 15, 1889- Serial No. 317,574:- (No model.)

To all whom it may concern:

Be it known that I, JAMES WHITE, a citizen of the United States, residing at Brooklyn, Kings county, New York, have invented certain new and useful Improvements in Roofing-Sheets, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

The object of this invention is to reduce the labor of double-seaming roofing-sheets upon the roofs of buildings, and to complete the-bending operation upon the edges of the roofing-sheets in the course of their manufacture, as far as possible, and to secure a simple and effective means of fastening such sheets upon the roof.

The invention consists, partly, in a roofingsheet with one edge provided with a single hook formed by bending the edge upwardly and inwardly, and the other edge provided with a double hook formed by bending the edge upwardly, outwardly, downwardly, and inwardly, and partly in a clip of particular construction attached to the single hook to secure the edge of the sheet to the roof by a concealed fastening.

In the annexed drawings, Figure 1 represents the blank for forming the roofing-sheet, with dotted lines upon which. the hooks would be bent. Fig. 2 is a plan of a single roofingsheet with clips applied thereto ready for use. Fig. 3 is an end View of the roofing-sheet and clip shown in Fig. 2. Fig. 4 is a section through such sheet on line 00 0c in Fig. 2, with the ends of adjacent sheets hooked thereto, such view being on a larger scale than Fig. 2. Fig. 5 is a view on a still larger scale of the roofingboards with a joint of two such sheets and the fastening-clip locked together in readiness for bending, and Fig. 6 is a similar view of the same parts with the double seam completed by turning down the single and double hooks.

The proportions of the hooks are exaggerated in the drawings to illustrate the construction more clearly.

a is the blank from which the finished sheet a is formed, and may be provided with slits or notches f to permit the ends as well as the edges to be bent, if desired.

To adapt a series of sheets to be secured together lengthwise, as shown in Fig. 4:, the

ends may be bent on the dotted lines 61 and 6 into upwardly and downwardly projecting hooks g and g, respectively, and where applied to slanting roofs such joint would sufiice to exclude water.

As shown in Fig". 3 the single hook ht is formed by bending that portion of the blank a between one edge and the dotted line I) upwardl y and inwardly, and the double hook kl is formed by bending the portion of theblank between its opposite edge and the dotted line 0 upwardly, outwardly, downwardly, and inwardly. As shown in Fig. 5, the double hook is so proportioned that it will slide endwise over the single hook upon the edge of an adjacent sheet of similar construction to secure the two sheets together, after which a complete double-seam joint may be formed by turning downward the outwardly-projecting portions of the hooks, as in Fig. 6.

The clips m are formed of strips of sheet metal bent at one end of the same shape as the double hook is Z, and are thus adapted to slip over the single hook, as shown in Fig. 3, and are provided on their opposite ends with feet n bent outward from the sheet to which they are applied and in a line therewith. Such feet are perforated to receive nailsofor fastening them to the roofing-boards p.

The clips, when used to secure the sheet upon the roof, are preferably clamped tightly upon the single hook, so as to add but little to its thickness, and the double hook 70 Z is proportioned to slip over the entire clip, as shown in Figs. 5 and 6, after the clips are secured to the roofing-boards p by means of the tacks 0.

I am aware that roofing-sheets have been constructed heretofore with single hooks along one edge, and with hooks along the opposite edge formed by bending the edge upwardly, outwardly, and downwardly to adapt one sheet to be secured to another by merely dropping one of such hooks over the other, as shown in United States Patent No. 380,109, dated March 27, 1888; but in such construction a double seam can be formed only by subsequently bending such hooks through two different angles. My invention differs from such construction in having a complete double hook on one side formed by bending the edge upwardly, outwardly, downwardly,

and inwardly, thus necessitating the fitting of the sheets together by sliding the double hook upon the edge of one sheet over the single hook upon an adjacent sheet, and thereby forminga closed joint which is f urtheradapted to be made into a double seam by a single bending operation.

I am also aware that it is not new to form a joint between two roofing-sheets with a sheet-metal clip interposed between the same and inserted between the sheathing-boards and secured upon their under side, as shown in United States Patent No. 370,680, dated September 27, 1887. My clip differs from the latter in being secured to the single hook before the application of the succeeding sheet to the roof and in having afoot bent parallel with the body of the sheet and in a line therewith, and thus adapted for securing upon the roof before the application of the succeeding roofing-sheet.

I hereby disclaim all prior constructions and the said United States patents, limiting myself to the invention specifically claimed herein.

\V hat I claim herein is- 1. As a new article of manufacture, a roofing-sheet having one of its edges provided with a single hook formed by bending the edge upwardly and inwardly, and the opposite edge provided with the double hook formed by bending the edge upwardly, outwardly, downwardly, and inwardly, as and for the purpose set forth.

2. As a new article of manufacture, the roofing-sheet a, having at its opposite edges the single hook hi and the double hook kl, as described, and having clips m secured to the single hook and provided with feet a, projecting outward from the edge of and substantially in a line with the body of the sheet, as herein set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

JAMES WHITE.

Witnesses:

R. J. SLANDORFF, J. B. DAVENPORT. 

